Bench vise



A. E. CHURCH.

BENCH VISE.

kPFL.CATION FILED 0509,1921.

Patented Nov. 28, 1922.

2 SHEETSSHEET I.

QXWCM e as ahoo/M 601 Patented Nov. 28, 1922 UNITED STATES PATENT OFFICE.

' ran-en vrsn.

Application filed December 9, 1921. 1 Serial No. 521,217.

and I do declare the following to be a full,

clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains, to make and use the same.

' My invention relates to improvements in bench vises and has for its principal object, the provision of a vise which may be quickly and easily converted for operation totally by hand, or to combine hand-operated and power operated actuating means for the movable jaw. By this arrangement,

the vise may be shipped from the factory as a hand vise only if the urchaser so requires,

- or if the vise is ordere with power-operated actuating means, this means may be quickly applied before shipment. Furthermore, a

' view as indicatedb means applied.

purchaser is enabled to obtain the vise with hand-operating means only and at a later threaded in a horizontally elongated tubular nut 10 whose front end is slidably received date to purchase the power-operated actuating means and install the latter himself with case. a v

With the foregoing in view, the invention resides in the novel subject matter hereinafter described and claimed, the descriptive matter being supplemented by the accompanying drawings:

Figure 1 is aside elevation of a vise con-' structed in accordance with my invention, showingthe power-operated jaw actuating Figure 2 is a top plan view of the construction' shownin Fig. 1.

Figure 3 is a central longitudinal sectional view as indicated by line 3-3 0 .Fig. 2.

igure 4 is a vertical transverse section on line 1-'4 of Fig. 3.

re 5 is, a detail horizontal sectional line 5-5 of Fig, gure 6 is a detail sectional view showing a different form of screw-engaging nut which is employed when the vise is to be furnished for operation by hand. Figure 7 is a. side elevation of the nut shown in Fig. 6.

F'gure 8 is a. side elevation of the nut shown in the other figures. v

In the principal showing of my invention, I have illustrated the vise as embodying both hand-operated and power-operated jaw actuating means, but it will beunderstood from the following description that the power-operated means may or may not be furnished with the device when sold.

The numeral 1 designates a suitable body carrying the usual fixed jaw 2, said body being provided with outstanding flanges or other suitable means 3 whereby it may be secured upon a bench or other suitable support. The body 1 is internally recessed as indicated at 4 and the recess opens through the rear end of the body as clearly shown in Fig. 3, but thefront end portion of said bodyis solid with the exception of a horizontal'screw-receiving opening 5. and a pair of flat-sided openings 6 disposed above and below said opening 5 The openings. 6 slidably receive apair of flat-sided guide bars 7 v which arerigidlysecured to a movable jaw 8, and an operating screw 9 which. is sW1v-- eled in said jaw, passes through the opening 5 but has no threaded engagement with the wall thereof.

The rear end portion of the screw- 9 is in a recess 11 in the body 1, said recess being preferably formed by counter-boring the rear end of the opening5 as'shown in Fig.

3. The nut 10 is held against rotation b means of a nut-holding device which is pre erably in the form of a 'screw 12 threaded transversely through one side of the body 1- and projectable at its inner end into the recess '11, the nut 10 being provided with a longitudinal groove or keyway 13 receiv ng said-inner end of the screw 12 as shown most clearly in Figs. 3 and 5. This construction holds the nut 10 against rotation f but permits slight sliding movement of said nut for a purpose to be hereinafter set forth. .The rear end'of the nut 10- is provided with a lug 14 or other suitable-means whereby mechanical means ma be connected with said nut for, bodilyshi ing the same and the screw 9 to operate the aw 8 by power. In the present showing, a piston rod 15 is connected by a removable pin 16 with the lug 14 and said piston rod is equipped with g a suitable piston 17 within a fluid pressure cylinder 18. This cylinder is provided with means for quickly attaching it to' or detaching it from the body 1 and as here shown, this means consists of. a'forwardly.

extending flange 19 which of arch shape as shown in Fig. 4 to rest over the rear end operated totally by power; and third, a 5

portion of the body 1, which portion is also of arched contour. The inner side of the flange 19 is preferably formed with a shoulder 21 abutting the rear end of the bodyl and screws ormthe like 22 are used to secure said flange to the body, whereby to rigidly mount the cylinder 18.

Any suitable spring means, such as a plurality of coiled springs 23, are employed for shifting the piston 17 and associated parts to a forward position, while" air or other suitable pressure'may beIconducted to the front end of the cylinder 18 through a pipe 24, to force the piston rearwardly and thereby move the jaw 8 to gripping position. suitable valve 26 may be employed for controlling the passage of air or other fluid pressure to the pipe 24 from a pressure supply line 27 and I prefer to detachably mountthis valve upon the body 1,v for instance, by means of screws 28.

From the construction so far described,

' it will be seen that by means of the screw understood that the valve 26 is of such form as to either admit pressure to the cylinder- 18 or to permit this pressure to exhaust, but the construction of thisvalve need not be dlsclosed as any of the well known valves on the market may be employed for this.

purpose.

-When the vise is to be sold without the cylinder; 18 and associated parts, so that the devlce may be operated entirely by hand, I refer to substitute a much shorter fnut' 10 or the nut 10 (see Figs. 6 and 7).

This nut is received in the recess 11 and isheld-therein by the screw 12 whose inner end is engaged with a socket 13 in one side of the nut.

If a purchaser wishes one of the visesto be operated entirely by hand, it is furnished without the cylinder 18, the nut 10 and as-' sociated parts, and one of the shorter nuts 11 is used. If a vise is required however which can be operated both by hand and by power, the device is furnished in the form shown in Figs. 1,2 and 3. Furthermore, it will be seen thatany one initially purchasing the vise without the pressureoperated actuating means, may at a later date purchase such operating means and install the same with ease. Thus,the varying requirements of the trade may be effective- 1y met without manufacturing first, a vise foperated totally by hand; second, a vise Any are now being obtained from the general construction herein described and-illustrated, this construction is preferably followed, but it is to be understood that within the scope of the invention as claimed, numerous changes may be made. I claim:

1. A bench vise comprising a body having a fixed jaw at its front end. a movable jaw in front of said fixed jaw having guiding means engaged with said body, a screw swiveled in said jaw and having a handle at the front side thereof, said screw extending slidably and rotatably intosaid body, a nut into which said screw is threaded,-said nutbeing slidably mounted in said body,

a fluid pressure cylinder carried by the form of nut against movement in one di-" rection, said body being adapted for connecting a piston containing cylinder to its rear portion in axial alignment with said recess, whereby the piston may be connected to said one nut for sliding the same, a

movable jaw cooperable with the fixedjaw of said body, and a handscrew swiveled in said movable jaw and adapted for engagement with either nut.

' 3. A bench vise comprising a body having a'fixed jaw,-said'body havlng a recess to fixedly receive one form of nut or to slidablyreceive another form of nut, a nut-holding device carried by said body with its inner ends projectable into said recess for receptionin a keyw socket of the other nut, and a movable jaw having a hand-operated screw for operative engagement with either nut, said body being adapted for the attachment of mechanical means thereto for sliding the second mentioned nut when the latter is used.

4. A tubular nut for sliding reception in a vise body, said nut having a longitudinal groove in one side to receive a nut-holding device and being additionally provided with an apertured lug on one end by means of which mechanical nut-operating means may be attached.

ALBERT-E. CHURCH.

ay of the sliding nut or a 

